Vegetation phenology gradients along the west and east coasts of Greenland from 2001 to 2015

TY - JOUR

T1 - Vegetation phenology gradients along the west and east coasts of Greenland from 2001 to 2015

AU - Karami, Mojtaba

AU - Hansen, Birger

AU - Westergaard-Nielsen, Andreas

AU - Abermann, Jakob

AU - Lund, Magnus

AU - Schmidt, Niels Martin

AU - Elberling, Bo

N1 - CENPERMOA[2017]

PY - 2017

Y1 - 2017

N2 - The objective of this paper is to characterize the spatiotemporal variations of vegetation phenology along latitudinal and altitudinal gradients in Greenland, and to examine local and regional climatic drivers. Time-series from the Moderate Resolution Imaging Spectroradiometer (MODIS) were analyzed to obtain various phenological metrics for the period 2001–2015. MODIS-derived land surface temperatures were corrected for the sampling biases caused by cloud cover. Results indicate significant differences between West and East Greenland, in terms of both observed phenology during the study period, as well as the climatic response. The date of the start of season (SOS) was significantly earlier (24 days), length of season longer (25 days), and time-integrated NDVI higher in West Greenland. The sea ice concentration during May was found to have a significant effect on the date of the SOS only in West Greenland, with the strongest linkage detected in mid-western parts of Greenland.

AB - The objective of this paper is to characterize the spatiotemporal variations of vegetation phenology along latitudinal and altitudinal gradients in Greenland, and to examine local and regional climatic drivers. Time-series from the Moderate Resolution Imaging Spectroradiometer (MODIS) were analyzed to obtain various phenological metrics for the period 2001–2015. MODIS-derived land surface temperatures were corrected for the sampling biases caused by cloud cover. Results indicate significant differences between West and East Greenland, in terms of both observed phenology during the study period, as well as the climatic response. The date of the start of season (SOS) was significantly earlier (24 days), length of season longer (25 days), and time-integrated NDVI higher in West Greenland. The sea ice concentration during May was found to have a significant effect on the date of the SOS only in West Greenland, with the strongest linkage detected in mid-western parts of Greenland.

KW - Arctic climate

KW - Greenland phenology

KW - Land surface temperature

KW - Sea ice

KW - Tundra vegetation

U2 - 10.1007/s13280-016-0866-6

DO - 10.1007/s13280-016-0866-6

M3 - Journal article

C2 - 28116689

AN - SCOPUS:85010443390

SN - 0044-7447

VL - 46

SP - 94

EP - 105

JO - Ambio

JF - Ambio

IS - Suppl. 1

ER -